A buddy of mine has a 79RC and his rear has some sort of Detroit Locker. Would that locker fit into my 93w150 9.25 rear? What I've read says they're both 9.25's but I wasn't sure if there were differences between the two aside from bolt pattern.

So, apparently the only discretion I can find is that older Detroits don't have provisions for the tone gear that runs the speedo sensor in the rear axle. I'm assuming I can just deal with no speedo readout and use a GPS or something for speed.

I'm pretty much positive it's an Eaton locker. He's been out of town so it's not been possible to look at it. I just wanted to make sure that even if it doesn't have that ring that I could still use it and just deal with no ABS. I've driven plenty of vehicles without ABS, anyway.